Renewable energy sources kept the Texas power grid mostly stable this summer even as the state broke record after record for power usage

• The Texas summer has been brutal, with some regions seeing 30 straight days of triple-digit temps.
• Renewable energy has kept the power grid "remarkably stable," an expert says.
• But as extreme heat continues and renewable energy decreases, the Texas grid is feeling the strain.

The heat is inescapable in Texas this summer. 

Austin hit triple-digit temperatures for 34 days straight. Dallas hit record-high heat for three consecutive days. El Paso, meanwhile, has seen 56 triple-digit days this summer, the third-highest frequency in the state's history.